I've never used a Garmin watch before but received my stepson's Fenix 3 he used while in the USMC. It's an oldie but a goodie. I'd like to hear what might be the best FREE map app I can use to track my walks, bike rides, etc. I have Garmin Connect installed on my Mac that already has some apps / widgets used by Jason .... but no map app. Can anyone help please?